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NR5700 series distribution network capacitance current tester
The NR5700 series distribution network capacitive current tester directly measures the capacitive current of the distribution network from the secondary side of the PT. Compared with the traditional test method, the capacitive current tester does not need to deal with the primary side, so there is no danger of testing. There is no need to do complicated safety measures and wait for lengthy dispatch commands, just connect the measuring line to the open triangle end of the PT to measure the capacitance current data.
◆Safety: No need to deal with the primary side, just put the measuring line between the triangle end of the PT to measure the capacitance current data, the test process is simple;
◆ Digital anti-jamming technology: The capacitance current tester filters out the influence of power frequency interference voltage on the measurement through the Fourier algorithm, and calculates the amplitude and phase of the output signal to obtain the measurement result. This method greatly reduces the impact of 50Hz power frequency interference signals on the measurement;
◆ Complete protection functions: The capacitance current tester has a series of high-power resistors to limit the output signal current to ensure that the capacitance current tester does not damage the PT in the case of extreme damage. The high-power output components of the capacitive current tester use high withstand voltage devices to ensure that when the distribution point system is abnormal and causes the open triangle voltage to be too high (up to 100V), the device can withstand the voltage impact before isolation.
◆ Measuring range: total capacitance to ground ≤120μF (three phases to ground)
Capacitance current ≤500 A (35kV system)
Capacitance current ≤200 A (10kV system)
◆ Measurement accuracy: ±5% (capacitance capacity ≤90μF);
±10% (90μF<capacitance capacity≤120μF)
◆ Working temperature: -10～50℃
◆ Relative humidity: ≤90%
◆ Power supply: AC 220V ± 10% 50 Hz ± 1%
◆ Dimensions: 350mm*200mm*150mm
◆ Instrument weight: 10 kg
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ADD：Building c3-09b, optical valley core center, 303 Optical Valley Avenue, Donghu New Technology Development Zone, Wuhan, China
Hotline：400-027-1230
Tel：+86-27-87690177
+86 177 6240 6910
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+86-133 6724 1932
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